DIY Concrete Wash Basin: A Step-by-Step Guide

Have you ever wanted to add a touch of industrial style to your bathroom or kitchen? Look no further because I have the perfect project for you: making your own concrete wash basin!

Not only is it a great way to add a unique and personal touch to your space, but it’s also cost-effective and customizable to your liking. Plus, you get the satisfaction of saying “I made that” every time you use it.

In this article, I will be providing a step-by-step guide on how to make a DIY concrete wash basin for indoor use. I’ll go over the essential tools and materials you’ll need, the dimensions and amount of concrete required, and the mixing ratio. I’ll also cover the pouring and curing process and offer tips for finishing touches to make your wash basin both functional and stylish.

So, grab your tools and let’s get started on this fun and rewarding project!

Tools and Materials Needed

Before we get started on making our own concrete wash basin, let’s go over the tools and materials we’ll need. Don’t worry, you won’t need any fancy or expensive equipment, just some basic tools and materials that you may already have lying around the house. Here’s what you’ll need:

Tools Needed

  • Mixing container: You’ll need a container large enough to mix the concrete in. A 5-gallon bucket works great for this.
  • Mixing tool: You’ll need a mixing tool to mix the concrete thoroughly. A drill with a mixing attachment or a mixing paddle attached to a power drill works well.
  • Mold: You’ll need a mold to pour the concrete into. A large plastic bowl or a container in the shape and size you desire works great.
  • Sandpaper: You’ll need sandpaper to smooth out the surface of the cured concrete.
  • Protective gear: Concrete can be messy and dusty, so make sure to wear gloves, eye protection, and a dust mask while working with it.

Materials Needed

  • Concrete mix: You’ll need a bag of concrete mix. A 50-pound bag of concrete mix is usually sufficient for a medium-sized wash basin.
  • Water: You’ll need water to mix the concrete.
  • Release agent: You’ll need a release agent to ensure that the concrete does not stick to the mold. Cooking spray or oil works great as a release agent.
  • Sealer: You’ll need a sealer to protect the surface of the cured concrete from water damage and stains.

That’s it! With these basic tools and materials, we’re ready to start making our own DIY concrete wash basin. Remember to take your time and follow the instructions carefully, and soon you’ll have a stylish and functional piece that you made yourself.

Dimensions and Concrete Required

One of the great things about making your own concrete wash basin is that you can customize it to the size and shape you want. Here are a few things to keep in mind when deciding on the dimensions of your wash basin:

Size and Shape

  • Consider the space: Measure the space where you plan to install the wash basin to ensure that it will fit comfortably and look proportional.
  • Think about function: Consider what you will be using the wash basin for. If you plan on using it for handwashing or washing small items, a smaller basin may suffice. If you plan on using it for larger tasks, such as washing dishes, a larger basin may be necessary.
  • Get creative: Don’t be afraid to experiment with different shapes and designs to make your wash basin unique.

Concrete Required

Once you have decided on the size and shape of your wash basin, you’ll need to determine how much concrete you’ll need. Here are a few things to keep in mind:

  • Calculate the volume: Calculate the volume of your mold to determine how much concrete you’ll need. To do this, measure the length, width, and depth of your mold, then multiply those three measurements together to get the total volume.
  • Account for waste: It’s always a good idea to purchase a little extra concrete mix than you think you’ll need, just in case. A 50-pound bag of concrete mix should be sufficient for a medium-sized basin, with some extra for mistakes or waste.

By taking these factors into consideration, you can determine the appropriate amount of concrete mix to purchase for your DIY concrete wash basin project. Once you have your tools, materials, and dimensions sorted out, it’s time to move on to the mixing and pouring process.

Mixing Ratio

Now that you have your mold ready and your concrete mix on hand, it’s time to start mixing. Mixing the concrete to the right consistency is crucial to the success of your DIY concrete wash basin project. Here’s how to get the perfect mixing ratio:

Water-to-Concrete Mix Ratio

  • Follow instructions: The ratio of water to concrete mix may vary depending on the brand of concrete mix you’re using, so it’s important to follow the instructions on the package. In general, a 1:5 ratio of water to concrete mix is typical.
  • Start with water: Begin by adding water to your mixing container. It’s a good idea to use a measuring cup to ensure you’re using the correct amount of water.
  • Gradually add concrete mix: Gradually add the concrete mix to the water while mixing continuously. A drill with a mixing attachment can make this process easier and faster.
  • Check consistency: Keep mixing until the concrete mix reaches a smooth, pourable consistency. The mixture should not be too runny or too stiff.

Tips for Mixing

  • Mix in small batches: Mixing small batches of concrete at a time can help ensure that the mixture stays at the right consistency and doesn’t dry out before you’re ready to use it.
  • Add water gradually: It’s much easier to add more water to the mixture if it’s too dry than to add more concrete mix if it’s too wet, so be sure to add water gradually.
  • Test the mixture: Test the mixture by pouring a small amount into your mold to see if it’s the right consistency. If it’s too thick, add a little more water. If it’s too thin, add a little more concrete mix.

By following these tips and keeping a close eye on the mixing process, you’ll be able to achieve the perfect consistency for your concrete wash basin. Once the mixture is ready, it’s time to pour it into the mold and start the curing process.

Pouring and Curing

With the concrete mix at the perfect consistency, it’s time to pour it into the mold and begin the curing process. Curing is essential for ensuring the strength and durability of your concrete wash basin. Here’s what you need to know:

Preparing the Mold

  • Apply release agent: Before pouring the concrete mix into the mold, spray the inside of the mold with a release agent. This will prevent the concrete from sticking to the mold and make it easier to remove the basin once it’s cured. You can use cooking spray, oil, or a commercial release agent for this step.
  • Place the mold: Place the mold in a level and stable position where it can remain undisturbed while the concrete cures.

Pouring the Concrete

  • Fill the mold: Pour the mixed concrete into the mold, filling it to the desired level. Use a trowel to smooth the surface of the concrete and remove any air bubbles. You can also tap the mold gently on the sides to help release any trapped air.
  • Cover the mold: Cover the mold with plastic wrap or a plastic bag to help retain moisture during the curing process. This is important for ensuring that the concrete cures properly.

Curing the Concrete

  • Allow to cure: Allow the concrete to cure for at least 24-48 hours. During this time, it’s important to keep the concrete moist by misting it with water periodically.
  • Remove the mold: After 24-48 hours, carefully remove the plastic covering and turn the mold over to release the concrete wash basin. You can use a rubber mallet to gently tap the mold and help release the basin.
  • Let it cure further: Allow the basin to cure for another 7 days before sanding the surface and applying a sealer. During this time, it’s important to keep the basin moist by misting it with water periodically.

By following these steps, you’ll be able to successfully pour and cure your DIY concrete wash basin. With a little patience and attention to detail, you’ll have a beautiful and functional addition to your home decor.

Finishing Touches

Now that you’ve poured and cured your DIY concrete wash basin, it’s time to add the finishing touches to make it functional and personalized to your needs. Here’s what you need to know:

Adding a Drain and Faucet

  • Mark the location: If you plan on using your concrete wash basin for handwashing or other activities that require a drain and faucet, mark the location of where you want to install them.
  • Cut the hole: Using a hole saw, cut a hole in the desired location. Make sure to choose a hole saw that is appropriate for the size of the drain and faucet you plan to use.
  • Install the drain and faucet: Follow the manufacturer’s instructions to install the drain and faucet. You may need to use a plumber’s putty or silicone caulk to ensure a watertight seal.

Sanding and Sealing

  • Sand the surface: After the basin has cured for 7 days, use sandpaper to smooth out any rough spots or imperfections on the surface of the basin. Start with a coarse grit sandpaper and work your way up to a finer grit.
  • Clean the basin: Once you’ve sanded the basin, use a damp cloth to clean off any dust or debris.
  • Apply sealer: Apply a concrete sealer to protect the basin from stains and make it easier to clean. Follow the manufacturer’s instructions for application and drying time.

With these finishing touches, your DIY concrete wash basin is ready for use. You’ll have a unique and stylish addition to your home decor that you can be proud of.


Congratulations! You’ve successfully created a DIY concrete wash basin for your indoor use. With just a few materials and tools, you can make a stylish and functional addition to your home decor.

By following the step-by-step guide outlined in this article, you’ve learned the basics of mixing, pouring, and curing concrete to create a unique and personalized wash basin. And with the added touches of a drain, faucet, sanding, and sealing, you can make your basin both functional and stylish.

Here are some key takeaways from this guide:

Key Takeaways

  • Creating a DIY concrete wash basin is a simple and affordable project that can add a unique touch to your home decor.
  • The tools and materials needed are relatively easy to find and use.
  • Mixing, pouring, and curing concrete requires patience and attention to detail to ensure a successful project.
  • Adding a drain, faucet, sanding, and sealing are important finishing touches to make your basin functional and durable.

Remember, this guide is just the beginning. Don’t be afraid to get creative and experiment with different sizes, shapes, and finishes to create a DIY concrete wash basin that truly fits your personal style.

We hope this guide has been helpful and inspiring, and we wish you the best of luck on your DIY concrete projects!

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